Home / 80,356.45-120,557.23-29,754.71

Finding the Fourth Proportional to 80,356.45, 120,557.23 and 29,754.71

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Solution

The fourth proportional to 80,356.45, 120,557.23 and 29,754.71 is: 44,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,356.45 : 120,557.23 = 29,754.71 : x
  2. Step 2: Convert to fraction form
    80,356.45/120,557.23 = 29,754.71/x
  3. Step 3: Cross multiply
    80,356.45x = 120,557.23 × 29,754.71
  4. Step 4: Simplify right side
    80,356.45x = 3,587,145,417.05
  5. Step 5: Solve for x
    x = 3,587,145,417.05/80,356.45
  6. Step 6: Final answer
    x = 44,640.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.